Double-acting self-closing door device



Dec. 26, 1922. 1,439,703. J. HAUENSTEIN.

DOUBLE- ACTING SELF CLOSING DOORDEVICE.

FILED NOV-3, I92]- 2 SHEETS-SHEET I.

A TTOR/VE) 111L115 I5 06 M l Patented Dec. 26,1922.

UNITED STATES PATENT OFFICE.

JULIUS HAUENSTEIN, OF JERSEY CITY, NEW JERSEY;

DOUBLE-ACTING SELF-CLOSING DOOR DEVICE.

- Application filed November 3, 1921. Serial nmsizaae To all whom it 'mwyconccm:

Be it known that'I, JULIUs HAUENsTEIN,

a citizen. of the United States, residing at Jersey City, in the countyof Hudson and State of New -Jersey,'have invented certain new and useful Improvements in Double- Acting Self-Closing Door Devices, of which the following is a specification.

This invention has forits main purpose the provision", of means adapted to close door to, thusmake' the device particular y applicable for fire-- any type; of swingin which is free from any ja-rs or slams when closing.

A still further object. is to provide a door which-can be'swung either inwardly or outwardly without the aid of springs and will thereafter immediately return'to closed position. 1

These and other objects will become apparent in the description in which-similar characters of reference refer to like-named parts in the drawings. r v

Referring briefly to the drawings, Figure 1 represents a front elevation of a door, its casing having the self-closing pivot members attached thereto.

Figure 2 is a front elevation of the lower hinge members showing the pivot stud and cam roller in place thereon.

Figure 3 is a fragmentary front elevation of a casing having double doors.

Figure 4 is-a perspective view of the lower hinge member, shown bottom side up, so as to illustrate the position of the cam roller.

Figure 5 is a perspective view of the cam block.

Figure 6 is an elevational sectional view of the door casing taken on the line 66 of Figure 1, position of the door when open.

Referring to the drawings, the numeral 10 represents side frames having the topmember 11 joined thereto to form a door casing.

'The usual type of door 12 is used and has swivel members secured to its upper and lower corners. The lower swivel member is composed of a pair of parallel plates 13-retained in spaced relation by the block 14 held by screws 15. The thickness of the blocks 14 are dependent upon the thickness is also secured between the plate members by the screw 17. The blocks have holes therein adapted to receive a pin18'on which is rotatably mounted a roller 19in such a way that its periphery will extend below the edge of the side plates 13.

A pivot stud 20, secured to the underside of the block 14:, engages in corresponding of the door panel employed in "the. construction. i A hearing block 16, spaced from block 14 holes in the casing and forms a. pivot for the door to swing upon. .The pivot stud of the lower member engages a hole 20 located in the, cam block 21 let into the floor at the base of the door casing and has curved inclined elevations contiguous both sides of the hole. As the door is swung open, the roller 19 will rideupon the inclined surfaces 22 and will consequently raise the door a distance corresponding to the height, of the inclined surfaces.

I After pressure has been released, the door will immediately begin to' descend the inclined surface 22 by gravity and will, after slight oscillation, come to rest in the groove indicated at 23.

.The upper swivel ;member is identical with the lower and is indicated by. the same reference numerals,'but the roll members 16, 18 and 19 are omitted as they are not required on the upper pivot member.

From Fi res 1 and 6 it is obvious that the door Wlll occupy a higher position 'in the casing when open thanwhen closed and for that reason follow-up wedges 23 are pro- .vided to telescope into the channel formed by the elements'24 permanently secured to the door casing. The follow-up wedges rest upon the upper surface of the door and are pivoted at one end 'by the pins 23. As the door is rotated, the roller will ascend the incllned surface thereby forcing the followup wedge into the channel, the latter posi- I claim:

1. In combination with a door and casing, a pair of pivot members secured to the upper and lower corners of a door and comprising plates secured to the door, blocks secured between said plates having apin,

a roller rotatably mounted on said pin, and

a block having raised cam surfaces on which said roller rides as the door is rotated, said surfaces constituting means for automatically closing the door.

2. In combination with a door and casing, a pivot device comprising plate mem' bers arranged in pairs at both the upper and lower corners of the door, a cam block having inclined surfaces thereon, pivot blocks secured between each pair of plate members, a roller rotatably mounted between the lower pair of plate members and adapted to, ride upon the inclined surfaces memos of the cam block and lift the door upon opening it, means for closing the opening left at the upper end of the casing when the door is closed, and means for releasably keeping the door in closed position.

3. In combination with a swinging door and its casing, said door having a limited vertical movement when operated, of means for closing the opening between the door top and its casin when the door is closed.

4.. In combination with a swinging door and its casing, said casing having a groove directly above the top of the door when closed, of a pivoted elementin the mentioned groove adapted to normally rest on the top of the door, said element closing the space therebetween.

In witness whereof I aflix my signature.

JULIUS HAUENSTEIN. 

